Back-rest for beds



NOV. 22, 1932. 0. KlESELER 1,888,509

BACK REST FOR BEDS Filed Nov. 5, 1928 w INVENTOR ,L' 027 011? HEsELER ATTORNEY Patented Nov. 22, 1932 UNITED STATES PATENT, OFFICE,

OTTO H. KIESELER, OF GLEVELAND, OHIO, ASSIGNOR' TO THE CHAMPION SPRING COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO BACK-REST FoR BEDS Application fi1ed November 5,1928. Serial No. 317,347.

This invention relates to back rests for .beds, and relates to pivoted back rests attach-ed to the frame of beds, cots or couches, such attachment being adapted to adjustment at various angles above the bed rails, and also adapted to foldable relation therewith, even to total collapse against the main bed frame for purpose of convenient storage or when the occupant of the bed desires a horizontal position therein. 7

It is an object of my invention to provide a back rest attachment for bed frames that shall be very readily adjusted as to inclination with the frame, and which shall also require very little power applied thereto to collapse the same. Adjustable back rests are known, but when the upper inclination of the device has been reached, difficulty has heretofore been experienced in disconnecting the 0 adjusting elements holding the attachment in the upper position. This difliculty I have overcome by my novel adjusting means.

v It is a special object of my invention in addition to providing adjusting means for holding the back rest attachment in proper inclination with the frame to provide such connection of a nature whichmay be disconnected for foldable relation with the frame, without requiring direct manipulation of the 0 supporting braces, a slightupward lifting of the rest being the only actuating movement essential for lowering the back rest to the extreme lower position. This I regard as an exceedingly valuable asset and one which I 3 believe to be wholly novel. v

With these and other objects in view which will be explained hereinafter, my invention consists in the described structure set forth in the appended claims and illustrated in the accompanying drawing, in which Figurel isa perspective view of the head portion of a cot frame embodying my invention;

Figure 2 is a structural detail shown in a central longitudinal vertical section of the parts shown inFig. 1, but indicating the back rest positioned one notch lower thanin I said view;

Figure 3 is a similar view, but showing the parts almost collapsed; and" riveted to the side bars.

Figure 4 is a transverse sectiontaken in the plane indicated by the line 44 of Fig.2.

The cot frame upon which I havei'llustrated my novel back rest attachment, is formed of conventional angle bars 10 which may be used to provide sidemembers 11 and suitable cross members 12 at' either end. It is immaterial so far as the operation of my attachment is concerned, how the en'dmembers are securedto the sidebar,.or how leg members are attached at the corners of the frame. I have shown leg members 13 connected to the side bars by braces 14.

My improved back rest comprises parallel side bars 15 usually of angle iron connected by cross bars 16 having bent ends usually The upper ends of the bars 15 are usually connected by a cross 'barwhile the lower ends .17 may remain disconnected. The inner surfaces of the ends o 17 have connected thereto at 'right angles, short bars 18 by means of rivets, and the lower ends of the bars 18 are provided with outwardly extending rivets 19 adaptedto travel along beneath and lengthwise of the side bars 10. The latter structure being intended to provide an adjustable position of the'ends 17. Further provision forthis function results from locating the vertical flange 20 ofthe angle bars 10 on the outer side, and the horiy zontal flange at the lower side, so that the ends 17 may travel upon the said horizontal flange and within the flanges 20. j

The backrest attachment is pivoted to the cot frame by providing downwardly extending bars 21 fixedly secured to the under surface of the horizontal flange of the cross bar 12 adjacent its ends; and then connecting the lower ends of bars 21 to the side bars 15 of the back rest by elongated parallel braces 22 whose upper ends are pivoted to the bars 15 intermediate their ends. The back rest is then pivoted to the cot frame at'varying inclination thereto and at a fixed distance from the bars 21. The back rest is further provided with a swinging bail having a cross bar 23 and side bars 24 whichis vpivotedto the side bars 15 at points 25 somewhat nearer the upper ends of the bars 15 than are the braces 22. The back nest then is supported slot opening thegate.

positively upon the braces 22 and the bars 10, and also adjustably supported upon the bail 23 in the manner about to be described.

A ratchet bar 26 is mounted in spaced relation upon each of the braces 22 in the .same plane therewith, and slightly spaced from the pivots 27 :for attachment with the bars 21. The said bars 26 are vertically spaced from their respective support braces by wplurality of "U-shaped plates28-whose ends are fixedly secured to the adjacent edges of the support braces and ratchet bars on the outer surfaces of each, so thatan un-' obstructed passage between the parts is.af-- forded for an appreciable distance extending outward through theslot 29 ,.ascle arly' shown in all the views of the drawing. 7

f These spaced bars '26 are mounted :above the support braces- 22, .and are provided with ratchet teeth 30 upon their upper edge 31, which teeth are: directed toward the rest bars 15. Suchspacingofthe parts-22 and-26 in the same vertica'l pl'ane afiords an openslot-29', except the '%lower' entrance nearest the bar 21 where-ah; slot is obstructed bya-swinging gateBQpivQtedat 33- t *the low'er end ofwth'e ban 26 an'd'swinging in -the same planeas the said bar, thereby opening the slot '29 .by a force 1 operatiing' downward along :the slot against the gate 132',:Ibut resisting'entrance to 'said=slot-from =ibe'low, by reason-of the pro visionsofa pinl=3likontheuouter surface ofthe ibra'ce 22 almost directly beneath .thexpmot 33 on the bar-26. A slender body may therefore travel downward through the inclined "32 and permitting the latter to again close the :op ening, but ire sis-ting rentranc'e of the same body into theslot 29 from the lower opening, becauseofthepin 34 :posi tively preventing swinginglofztheigate member. in an'upward' direction. The' func- .tion of this relation of part-swill be explained below.

"The sidebars 24 of :the bail :are provided with outwardly-extending pins 35 which by gravity bear against the teeth 30 as therest is raised :in adj ustment, and travelling downward through the slot 29 and leaving the'same cat the lower portion by striking the gate 32 and opening the same, and: again -.risingup along :the ratchct'teeth 30 on its return movement.

In operation, the'back rest comprising the ';bars -15 -and 16 :is supported in its inclined z 'aosition upon-the pivots -25 formingthe' connection with the-bail 23,, and upon the pivots connecti'ngthe braces 22 with the bars 15,

ill-1e lower ends-:1? .ef the back 'rest aresnppontedaipon the honizontalfiangesfof the bars-.10, and slide therealong as the .r'est'is adjus ed. Thefipi-ns 119 beneath the-bars 10 hold the-rest contact with the frame bar-s. braces22 provide the central elements, While the bail 23 holds the the adjusted -inclination intended.

-of the appended claims.

The movement of the bail pins 35 about the ratchet bars 26 determines the particular po-. sition of the rest upon the cot frame. l/Vhen the rest is lowered to its limit, it is intended that the bars 15 of the attachment shall lie upon the horizontal flanges of thebars 10 of the cot frame, while the pins 35' then rest upon the lower ends of the braces 22, as indicated in dotted lines in Fig. 3 of the draw- --ing.

have left the last notch 30, the-pin. 35 will then drop-- by gravity down upon" the edge .of the brace 22, which isv the movementindicated .in'dotted lines in Fig; 2. a If the rest is now permitted 'to fall, the pins 35 will travel down the full length of the slots 29 5 until they will encounter the swinging gates 32 which will open to permit the pins to .pass by them, which is the movement indicated in fall lines in Fig. 3. The upper end of :each gate :32 is provided with an extendedtip 3.6 which may strike the plate;28.

Tllheratchet bar 26- may have any desired length, depending upon the length of the back rest and length of the bars 24.. The

number of notches30in thebar 26 maylalso T be widely varied in number to-determinethe desired variance in theinclination of-the back -rest. Itiso f course, wholly immaterial what the character .of' the supporting "legs 13 is,

or what the nature of their attachment to' the bed frame is. In fact, the particulairxopios eration of the back rest is not at alldependent uponthe arrangement of the supportinglegs v or whether the-bed framehas legs of any.

kind.

It is to be understood that various other .changesin construction may .be made as may prove expedient, and fall within the scope Having described my invention, claim and desire to secure by Letters Patent, 1s 7 1. A back rest attachment for a cot frame, h ing supporting braces pivoted thereto and to said frame, I rest being adapted to ride slidably upon and lengthwise of said frame, adjusting mechanism including ratchet bars fixedly secured in vertically spaced relation from; said braces by the provisionof U-shaped members whose ends are secured to the ratchet bar and the supporting in alinement with the said space between brace and bar, and said ratchet bars having a series of ratchet notches'therein, and an what I? the lower ends of theback brace posltioning saidjmembers adjusting bail swinging from said attach-- ment and carrying outwardly projecting pins on its side members adapted to enter any one of said notches to hold the back rest in adjusted position, the supporting braces being pivoted to said attachment between the said adjusting bail and the lower ends of the attachment.

2. A back rest attachment for a cot frame, comprising side bars adapted to ride upon the side rails of said frame and carrying 011 their lower ends, outwardly extending pins sliding beneath said rails, brace bars pivoted to said side bars and side rails and carrying ratchet bars secured thereto and spaced thereabove in a common Vertical plane by the provision of a plurality of ofi'set U-shaped members secured to the adjacent edges of the ratchet bars and brace bars with the yoke of the U member in alinement with the said space, and an adjusting bail swinging from said side bars and carrying outwardly projecting pins permitting their travelling through the space between the supporting braces and ratchet bars and detachably entering the notches of the latter the said supporting braces being pivoted to the side barsintermediate the bail and the lower ends of said bars.

In witness whereof I have hereunto set my hand this 31st day of October, 1928.

OTTO H. KIESELER. 

